Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 25: Quantum Information: Quantum Computation II
Q 25.2: Vortrag
Dienstag, 24. März 2015, 14:45–15:00, C/HSO
Efficient Production of Diamond-Based Multi-Spin Quantum Registers — •Ingmar Jakobi1, Seyed Ali Momenzadeh1, Julia Michl1, Florestan Ziem1, Matthias Schreck2, Klas Lindfors3, Philipp Neumann1, Andrej Denisenko1, and Jörg Wrachtrup1 — 13. Physiklaisches Institut, Universität Stuttgart — 2Experimentalphysik IV, Institut für Physik, Universität Augsburg — 3MPI für Festkörperforschung, Stuttgart
Coherently coupled pairs or multimers of nitrogen-vacancy defect centers (NV) in diamond have many promising applications ranging from metrology [1] to quantum information processing [2, 3]. Especially in the case of quantum computing scalable registers are essential to the progress of the field. While the production of NV dimers by ion implantation through nano-apertures has made good progress in recent years [3,4], more efficient processes are needed for the production of larger clusters.
Here we present results from ion implantations with optimized parameters. Not only are we able to produce coupled NV pairs, suitable for entanglement experiments, with an increased probability. Also by collecting large statistics of ion to NV yield and coherence times we are able to set up an empirical model for the efficient production of dimers and higher order multimers.
[1] A. Chin, et al., PRL 109,233601 (2012)
[2] P. Neumann, et al., NPhys 6, 249-253 (2010)
[3] F. Dolde, et al., NPhys 9, 139-143, (2013)
[4] S. Pezzagna, et al., pssa 208,9 2017-2022 (2011)